2008
DOI: 10.1016/j.jmarsys.2007.05.006
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Metals content in surface waters of an upwelling system of the northern Humboldt Current (Mejillones Bay, Chile)

Abstract: 13Physical-chemical parameters (temperature, salinity, dissolved oxygen, nutrients, and chlorophyll concentration) of surface 14 waters were used to evaluate the influence of biological and physical processes over the metal concentrations (Cd, Ni, V, Mo, Mn, 19The surface concentration of metals does not appear to be explained by anthropogenic inputs (at least not during the year of this 20 work), and variability observed in this study appears to be natural. The lack of correlation between physical-chemical p… Show more

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Cited by 25 publications
(15 citation statements)
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“…The dissolved concentrations of Cu, Cd, Pb, and Zn in seawater were made by means of potentiometric stripping analysis (PSA) in the way of analytic derivative signal (dPSA) (Romero 1996;Lo Coco et al 2000;Mayer et al 2003;Xie 2005;Valdés et al 2008). For Zn analysis, Ga(III) was added as copper scavenger (Psaroudakis and Efstathiou 1989;Lo Coco et al 2003).…”
Section: Analytical Proceduresmentioning
confidence: 99%
“…The dissolved concentrations of Cu, Cd, Pb, and Zn in seawater were made by means of potentiometric stripping analysis (PSA) in the way of analytic derivative signal (dPSA) (Romero 1996;Lo Coco et al 2000;Mayer et al 2003;Xie 2005;Valdés et al 2008). For Zn analysis, Ga(III) was added as copper scavenger (Psaroudakis and Efstathiou 1989;Lo Coco et al 2003).…”
Section: Analytical Proceduresmentioning
confidence: 99%
“…In order to test whether trace metals are related to availability in seawater or preconcentration in biodetritus we plotted some metal excess contents of sediments of Mejillones (this study) vs. seawater contents reported by Valdés et al (2008) for this same bay. We use the model proposed by Bóning et al, 2004 andBöning et al, 2009 for metals accumulated within and below the OMZ in the Peruvian, Namibian and Chilean coastal zone, which separates metals related to a seawater source from those related to a biodetritus source.…”
Section: Trace Metal Source/sink Relations In Mejillones Baymentioning
confidence: 99%
“…These factors have favored the accumulation of diatomaceous sediments, rich in organic matter, and with minimal signs of bioturbation (Vargas et al, 2004;Valdés et al, 2009). As a result, the sedimentary records present a high potential for paleo-ocean-climatic reconstruction, (Ortlieb et al, 2000, Vargas et al, 2007, Valdés et al, 2008, Caniupán et al, 2009and Díaz-Ochoa et al, 2011). …”
Section: Introductionmentioning
confidence: 99%
“…Este desarrollo industrial ha generado una gran presión de uso sobre el entorno marino. Por otra parte, no son muchos los trabajos que relacionan este crecimiento industrial con el sistema costero de la bahía de Mejillones y que abarcan los sedimentos submareales (Valdés et al, 2005(Valdés et al, , 2008Valdés, 2012). Por el contrario, hay gran cantidad de información sobre mecanismos y procesos oceanográficos tales como eventos de surgencia, productividad biológica, variabilidad ENOS, evolución océano-climática, entre otros aspectos (Rodríguez et al, 1991;Marín et al, 1993;Escribano, 1998;Marín & Olivares, 1999;Ortlieb et al, 2000;Páez & Frías, 2001;González et al, 2004;Vargas et al, 2007).…”
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